I've been thinking about it..... Maybe the OP has an app, or plans on writing one (or having it written), and it will simply record for retrieval later when the device is retrieved. At any rate, the GPS pucks were down to $40-50 new several years ago for some models. Don't know what they are now or what's available. If the 8700 is in a holster and simply recording, it will make it that long if fully charged and battery is good. It could be a stretch for the bluetooth puck, though, depending on the model. The one I was using back then would go 6+ hours as I recall.Posted via BlackBerryForums.com Mobile